Preparation and characterization of a- and b-axis-oriented epitaxially grown Bi4Ti3O12-based thin films with long-range lattice matching

Takayuki Watanabe, Hiroshi Funakubo, Keisuke Saito, Toshimasa Suzuki, Masayuki Fujimoto, Minoru Osada, Yuji Noguchi, Masaru Miyayama

Research output: Contribution to journalArticle

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Abstract

a- and b-axis-oriented epitaxial Bi4Ti3O12 films were prepared on (101)TiO2 (rutile) substrates at 630°C by metalorganic chemical vapor deposition and their perfect epitaxial growths were confirmed by several x-ray diffraction measurements. As the bottom electrode, (101)-oriented conductive materials with the same rutile-type structure as the TiO2, RuO2, and IrO2, were epitaxially grown on (101)TiO2, (012)Al2O3, and (110)Al 2O3 substrates. Finally, a- and b-axis-oriented Bi 4Ti3O12-based materials, (Bi 4-xNdx)(Ti3-yVy)O12, were epitaxially grown on these conductive substrates with high reproducibility and a well-saturated P-E hysteresis loop with a remanent polarization above 20 μC/cm2 was observed. These results open the long-range lattice matching growth (the c-axis lattice parameter is about 3.3 nm) of a- and b-axis-oriented bismuth layer-structured ferroelectrics on conductive electrodes.

Original languageEnglish
Pages (from-to)1660-1662
Number of pages3
JournalApplied Physics Letters
Volume81
Issue number9
DOIs
Publication statusPublished - 2002 Aug 26
Externally publishedYes

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preparation
thin films
rutile
electrodes
bismuth
metalorganic chemical vapor deposition
lattice parameters
x ray diffraction
hysteresis
polarization

ASJC Scopus subject areas

  • Physics and Astronomy (miscellaneous)

Cite this

Preparation and characterization of a- and b-axis-oriented epitaxially grown Bi4Ti3O12-based thin films with long-range lattice matching. / Watanabe, Takayuki; Funakubo, Hiroshi; Saito, Keisuke; Suzuki, Toshimasa; Fujimoto, Masayuki; Osada, Minoru; Noguchi, Yuji; Miyayama, Masaru.

In: Applied Physics Letters, Vol. 81, No. 9, 26.08.2002, p. 1660-1662.

Research output: Contribution to journalArticle

Watanabe, T, Funakubo, H, Saito, K, Suzuki, T, Fujimoto, M, Osada, M, Noguchi, Y & Miyayama, M 2002, 'Preparation and characterization of a- and b-axis-oriented epitaxially grown Bi4Ti3O12-based thin films with long-range lattice matching', Applied Physics Letters, vol. 81, no. 9, pp. 1660-1662. https://doi.org/10.1063/1.1503850
Watanabe, Takayuki ; Funakubo, Hiroshi ; Saito, Keisuke ; Suzuki, Toshimasa ; Fujimoto, Masayuki ; Osada, Minoru ; Noguchi, Yuji ; Miyayama, Masaru. / Preparation and characterization of a- and b-axis-oriented epitaxially grown Bi4Ti3O12-based thin films with long-range lattice matching. In: Applied Physics Letters. 2002 ; Vol. 81, No. 9. pp. 1660-1662.
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